Flush-hinge door.



J. G. SCHMIDT.

FLUSH HINGE DOOR.

APPLIOATION FILED JUNE 25, 1909.

Patented May 31, 1910.

WITNESSES ATTORNEY.

ANDREW a. GRAHAM co FHOTO-UKHDGRAVHERS. WASHINGTON, n. c

IINIE %IAE PATEFT @FFIQE.

JOHN GUSTAVE SCHMIDT, OF PASSAIC, NEW JERSEY.

FLUSH-HINGE DOOR.

Application filed June 25, 1909.

To all whom it may concern:

Be it known that I, JOHN GUsTAvn SCHMIDT, a citizen of the UnitedStates, residing in Passaic, Passaic county, New Jersey, have invented acertain new and useful Improvement in Flush-Hinge Doors; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to characters of reference marked thereon,which form a part of this specification.

This invention relates to flush-hinges and it consists in certainimprovements in the flush-hinge set forth in my U. S. Letters Patent No.835,116, dated November 6, 1906, whereby a strong and durableflush-hinge is provided which may be applied to and removed from theframe although the frame may be permanently set in a concrete or otherfoundation not permitting removal of the frame without considerabledifficulty and damage to the foundation. In my previous patent, theframe was slotted, and casings in which the door was pivoted wereattached to the outer side of the frame; this made it diflicult to haveaccess to the casings in order to remove the door. In the presentinstance, I secure the casings removably to the inside of the frame,preferably to both its horizontal and vertical walls, whereby the doormay be readily removed at any time without disturbing the frame. Afurther advantage of this arrangement lies in the fact that, should thecasings become loosened, they may be readily readjusted, and even ifleft loose they cannot act by any movement incidental to such looseningto break down or disintegrate the concrete.

A further object of my invention is to provide a handle for the door soconstructed as normally to stand flush therewith and close ofi theadmission of water, but capable of being pivotally raised to afford afirm hold on the door when opening and closing it.

In the accompanying drawing, Figure 1 is a plan view of a fragment of adoor and frame provided with my improved fiushhinge; Fig. 2 is alongitudinal sectional view substantially on the line wx in Fig. 1 Fig.3 is a vertical sectional view on the line yg of Fig. 1; Fig. 4 is avertical sectional view through one of the hinges, looking outwardly;Fig. 5 is a plan View of the cas- Specification of Letters Patent.

Patented May 31, 1910.

Serial No. 504,301.

ing; Fig. '6 is a vertical sectional view of a modified form of theinvention, the plane of the section being transversely of the aXis ofthe hinge; and, Fig. 7 is a fragmentary plan view of what is shown inFig. 6, a portion of the frame being broken away.

a designates the door and b the frame. In Figs. 1 to 4, this framecomprises pieces of angle-iron c mitered together in rectangulararrangement, and the plates cl. Relatively to the vertical wall 6 ofeach side of the frame, its horizontal wall f projects inwardly, whilethe plate (Z, which is suitably secured to each piece of angle-ironagainst the top of its horizontal wall f, projects outwardly, making thecross-section of the frame have the form of the letter T. Thus, when theframe is set in the concrete 9, the outwardly projecting portions of theplates (Z rest on the concrete and support the frame. In Figs. 6 and 7substantially the same of feet is secured by making each section or side71, of the frame of T-iron.

Referring now to Figs. 1 to 5, z' is a casing open at the top and backand having a slot y at the front thereof. This casing has the downwardlyprojecting or vertical wing 70 and two laterally projecting horizontalwings Z, the former having its back face flush with that of the casingand the latter having their top surfaces flush with that of the casing.In side elevation, the top and back surfaces of the casing formsubstantially a right-angle so that the casing may be fitted in theangle between the walls 6 and f of the frame, being held in thatposition by screws or the like at penetrating holes in the wings Zr, andZ and tapped into the walls 6 and There are preferably two such casings,and in coincidence with the slot of each the wall f and plate (Z are cutaway to produce a slot n, the outer end of which forms a shoulder orabutment whose function will later appear.

Opposed recesses 0 are formed in the top of each casing, and in theserecesses rest the ends of a pin 7), the pin is circular in crosssection,but its ends are cut away, as at so as to lie flush with the top surfaceof the casing, the flats 1" thus produced lying in contact with theunder side of wall f and thus preventing the pin from turning.

On each pin 29 as a fulcrum is arranged an arm or lever s which may beriveted or otherwise secured to the door a, the pivotal portion of thearm being received by the slot at and having its top face higher thanthe rest of the arm so as to lie flush with the top surface of plate dwhen the door is closed, at which time the said pivotal portion isreceived by the slot 7' of the casing; when the door is open, thepivotal portion of each arm bears against the shoulder formed at theouter end of the slot a.

By arranging the parts so that the pm 77 is non-rotatable, the wearcomes entirely on the pin, which may be of some hard metal, such assteel, allowing the casing to be cast from a softer metal, such asbrass,- if' desired.

The frame may be permanently set in the concrete foundation g, whereuponthe door may be attached by simply securing 1n place the'ca'sings 2';should it be necessary to remove the door, it is only necessary todetach the casings.

Referring now to Figs. 6 and 7, one side of frame 7 is formed with twoapertures t in the wall 20 thereof and with slots t (of less width thanthe apertures but registering therewith) in the wall 1). w is the casingformed open at the top and at its inner side or front.- The verticaldownwardly projecting wing 00' and horizontal Wings y of this casing aredisposed at the front thereof (instead of relatively at the back, as inthe case of the casing 2'). Each casing is introduced into its aperturet under wall 11 and is secured in position by the screws a penetratingits wings w and y and tapped into the vertical wall 24 and the inwardlyprojecting portion of the horizontal wall 4) of the frame. The casing ispenetrated hori= zont-ally by a pin '1 and on this pin is fulcrumed thearm or lever 2, which may be suitably secured to thedoor a and whichfits the slot 25. l/Vhen the parts are assembled, as shown in Figs. 6and 7, the casing projecting into the slot 2%,- the pin is preventedfrom endwise displacement since at that time it occupies partly the sameplane as the vertical wall a and is opposed at its ends by the same. Inthis form also, the frame may be permanently established in itsfoundation and the door afterward attached by first assembling its hingemembers and then introducing the casings into apertures 25 and securingthem in place; to remove the door, the casings have only to be detached.

In both forms of the invention the casings are attached to the frame insuch manner as to be readily accessible; in both forms, also, the pin p(or 1) is removable, being held in place partly by the casing and partlyby the frame.

The handle shown in Fig. 1 is arranged and constructed as follows: Aslot 3, eX

tended transversely of the axis of the door,

is formed in the door, and in alinement with it an opening 4;. Arrangedin suitable bearings 5 riveted to the under side of the door '10 has anupward projection 12 adapted to be received by the opening 4. Adjoiningits pivot, the handle has anarc-shaped portion 13 terminating in ashoulder 14%, and in its edge 8 adjoining its edge 11 the handle has anick 15 to receive the thumb-nail. In using this handle the project-ion12 is pressed upon sufliciently to raise the nick 15 above the top ofthe door so that the operator can insert his thumb-nail in the nick andthus raise the handle sufiiciently so that a grip may be secured in theopening 9. In raising or lowering the door by means of the handle, theshoulder 14L will abut against the inner end of the slot 3 and, bylimiting the movement of the handle, afford a good purchase; the part ofthe door between the slot and opening thus serves as a stop to limit themovement of the handle not only downwardly but upwardly.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

1. The combination of a door frame having one side thereof formed with avertical wall and a horizontal wall projecting inwardly from thevertical wall, the second wall having a transverse slot eXtending'fromthe inner edge of said wall outwardly toward the vertical wall, a casingstanding in opposed relation to the slot under the horizontal wall,means for removably securing the casing to each of said walls, and adoor hinged in the casing and having its hinge portion Inov'able in saidslot, substantially as described.

2. The combination of a door frame having one side thereof formed with avertical wall and a horizontal wall projecting inwardly from thevertical wall, the second wall having a transverse slot extending fromwall having a transverse slot extending from the inner edge of said Walloutwardly toward the vertical wall, a casing standing in opposedrelation to the slot under the horizontal wall, means for removablysecuring the casing to each of said walls, a pin removably arranged inthe casing and held in place by the same and the frame and a doorfulcrumed on said pin and having its fulcrum portion movable in saidslot, substantially as described.

l. The combination of a door frame having one side thereof formed with avertical wall and a horizontal wall projecting inwardly from thevertical wall, the second wall having a transverse slot extending fromthe inner edge of said wall outwardly toward the vertical wall, a casingstanding in opposed relation to the slot under the horizontal wall andbeing inwardly open, means for removably securing the casing to each ofsaid walls, and a door hinged in the easing and having its hinge portionmovable in said slot and in the opening of said casing, substantially asdescribed.

5. The combination of a door frame having one side thereof formed with avertical wall and a horizontal wall projecting inwardly from thevertical wall, the second wall having a transverse slot extending fromthe inner edge of said wall outwardly toward the vertical wall, a casingstanding in opposed relation to the slot under the horigig zontal wall,means for removably securing the casing to said frame. and a door hingedin the casing and having its hinge portion movable in said slot,substantially as described.

6. The combination, with a frame and a door pivoted therein, said doorhaving a slot and an opening alined with the slot and spaced therefrom,of a pin crossing the slot at a right angle thereto, and a two-armedlever forming a handle and penetrated between its ends by and fulcrumedon said pin and movable thereon in a plane perpendicular to the door andthrough the slot, said lever having each arm thereof longer than thedistance from the pin to the end of the slot which adjoins the opening,whereby the lever will be limited in its pivotal movement in onedirection by one of its arms, and in its pivotal movement in the otherdirection by the other of its arms, engaging the door between the slotand opening, and one arm of said lever having a projection registeringwith and adapted to enter the opening, substantially as described.

In testimony, that I claim the foregoing, I have hereunto set my handthis 23rd day of June, 1909.

J OHi GUSTAVE SCHMIDT.

Vitnesses:

JOHN W. STEWARD, WM. D. BELL.

